10999087123 has 2 divisors, whose sum is σ = 10999087124. Its totient is φ = 10999087122.

The previous prime is 10999087109. The next prime is 10999087181. The reversal of 10999087123 is 32178099901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10999087123 - 2¹⁷ = 10998956051 is a prime.

It is not a weakly prime, because it can be changed into another prime (10999087523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5499543561 + 5499543562.

It is an arithmetic number, because the mean of its divisors is an integer number (5499543562).

Almost surely, 2^10999087123 is an apocalyptic number.

10999087123 is a deficient number, since it is larger than the sum of its proper divisors (1).

10999087123 is an equidigital number, since it uses as much as digits as its factorization.

10999087123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 244944, while the sum is 49.

The spelling of 10999087123 in words is "ten billion, nine hundred ninety-nine million, eighty-seven thousand, one hundred twenty-three".